Async enctryption & big data

[Nataliia]

Hi all!

I read something about asyncronous encryprion in cryptoPP and in general,  that assynchronous encryption doesn't apropriate to effective work with big data.

And if I want to make such data exchange, I need use asynchroous encription only for exchange synchronous key. And then I should use synchronous encryprion while connection is present.

Is it correct advice? What problem is with assinchronous encryption for big data?